Attitude Indicator, ARU 2B/A, US Air Force ME-262 The knob at the top

The knob at the top of the indicator is actually a hex key used to adjust deviations in readings on the Master Compass

as used in the Airborne Radio Navigation System AN/ARN-11 (see spec sheet in photo gallery) during and after WWII in both military and commercial aircraft

This model was made by Bendix/Pioneer Div

instructions

25 inches diameter by ~5 inches deep

Attitude Indicator, ARU 2B/A, US Air Force ME-262 The knob at the topThis is a Cold War Vietnam War era Attitude Indicator type ARU 2B A, made by Sperry, part number 1784163 901, MIL I 27193A. This instrument appeared on the pilot's and co pilot's instrument panel of a number of US Air Force and US Navy aircraft such as the Lockheed C 130 Hercules Transport. This unit has a service label from McClellan Air Force Base in Sacramento CA dated 1987. The purpose of the instrument is to rapidly indicate to the pilot the